Chemical constituents from roots of Kadsura longipedunculata / 中草药

ABSTRACT

Objective: To study the chemical constituents from the roots of Kadsura longipedunculata. Methods: The constituents were isolated and purified by various chromatographic methods, and the structures were elucidated by spectroscopic analysis. Results: Sixteen compounds were isolated from the roots of K. longipedunculata and the structures were identified as pinobatol (1), leptolepisol B (2), 7S,8R-erythro-4,7,9,9'-tetrahydroxy-3,3'-dimethoxy-8-O-4'-neolignan (3), 2,3-bis-(α-hydroxy-4-hydroxy-3-methoxybenzyl)-butane-1,4-diol (4), (7'S,8R,8'S)-4,4',9-trihydroxy-3,3',5-trimethoxy-9'-O-β-D-xylopyranosyl-2,7'-cyclo-lignan (5), aviculin (6), ent-isolariciresinol (7), lawsorosemarinol (8), (+)-anwulignan (9), isolariciresinol-2α-O-β-D-xyloside (10), procyanidin B3 (11), prodelphinidin B3 (12), (-)-gallocatechin (13), (+)-catechin (14), abscisic acid-β-D-glucopyranosyl ester (15), and (-)-oleuropeic acid 8-O-β-D-glucopyranoside (16). Conclusion: Compounds 1-8, 11-13, 15, and 16 are isolated from the plants of Kadsura Kaempf. ex Juss. for the first time.